Tobacco pipes



' l. l. POLLOCK Dec. 3, 1968 TOBACCO PIPES Filed Oct. 51, 1966 Inventor/m,e /.s'44c fan or)? A llorneys United States Patent Office 3,413,980TOBACCO PIPES Ivor Isaac Pollock, Rossdene, 20 Carrwood Ave., Bramhall,Cheshire, England Continuation-impart of application Ser. No. 420,215,Dec. 21, 1964. This application Oct. 31, 1966, Ser. No. 590,992 Claimspriority, application Great Britain, Dec. 28, 196

51,097/ 63 V 7 Claims. (Cl. 131-214) ABSTRACT OF THE DISCLOSURE Atobacco pipe has a detachable bowl and a metal bowl-holding cup. Asmoke-carrying stem extends from and communicates with the interior ofthe metal bowlholding cup, and a male screw-threaded member within thecup and fixed to and projecting from the bottom of the cup hasscrew-threaded engagement with the bowl to connect the bowl to the cup.The interior surface of the cup and the underside of the bowl define asmoke chamber between the bowl and the cup, and a slot traverses thescrew threads on the male screw-threaded member for passing smoke fromthe bowl to that chamber.

This invention relates to tobacco pipes and is a continuation-in-part ofUnited States patent application Ser. No. 420,215, filed on Dec. 21,1964, and now abandoned, in the name of Ivor Isaac Pollock.

According to the present invention there is provided a tobacco pipehaving a detachable bowl, a metal bowl holding cup, a smoke-carryingstem extending from and communicating with the interior of thebowl-holding cup, means defining an aperture in the bottom of the cup, amale screw-threaded member within and projecting from the bottom of thecup and fixed thereto through said aperture, said male screw-threadedmember having a first flange thereon engaging the inner surface of thecup adjacent and around said aperture and a second flange thereonengaging the outer surface of the cup adjacent and around said aperture,means on the bowl defining a screw-threaded aperture for engagement withthe male screw-threaded member to connect the bowl to the cup, the innersurface of the cup and the underside of the bowl defining a smokechamber between the bowl and the cup, and means on the malescrew-threaded member defining a passage extending between the bowl andthe cup for passing smoke from the bowl to the cup.

Embodiments of the invention will now be described, by way of example,with reference to the accompanying drawings in which:

FIG. 1 shows a sectional elevation of a tobacco pipe according to thepresent invention,

FIG. 2 shows an enlarged plan view of a component shown in FIG. 1,

FIG. 3 shows a sectional elevation of part of FIG. 1 but incorporates amodification of the present invention, and

FIG. 4 shows a detail of FIGS. 1 and 3 but incorporating a furthermodification.

Referring to FIG. 1 of the accompanying drawings, a tobacco pipeaccording to the present invention consists generally of a bowl attachedto a bowl-holding cup 11 by means of a male screw-threaded member 12, astem 13 and a mouthpiece 14.

More particularly, the bowl 10 is made of wood, preferably briar, andthe bottom thereof is apertured by a screw-threaded socket forengagement with the male screw-threaded member 12. A coiled wire insert15 may be screwed into a tapped hole in the bottom of the bowl 10 so asto provide the said screw-threaded socket for 3,413,980 Patented Dec. 3,1968 engagement with the member 12 and an extension 16 of one end of thewire forming the insert 15 bent inwardly so as to project across theupper end of the member 12 and serve as an impediment to the escape oftobacco from the bowl 10 (FIG. 2). Preferably, the insert 15 is made ofstainless steel and is of slightly greater diameter than the tapped holein the bowl 10 so that the coil is under radial compression when inposition. The male screwthreaded member 12 may be self-tapping forengagement with an initially plain hole through the bottom of the bowl10.

The bowl-holding cup 11 is made of metal, preferably stainless steel,and is dished in the form of a deep saucer, the member 12 being fixed tothe bottom thereof so as to project upwardly as shown in FIG. 1. Thebottom of the cup 11 is apertured and the member 12 is fixedtherethrough by means of flanges 16 and 17, one of the flanges beingformed by a rivetting process after insertion of the member 12 throughthe aperture in the cup 11, the member 12 being a ductile material, forexample an aluminum alloy. A layer of poor thermal conductivitymaterial, for example a synthetic resinous cement, may be positionedbetween the inner surfaces of the flanges 16, 17 and the correspondingsurfaces on the cup 11 so that the cup 11 and the stem 13 will remainrelatively cool when the pipe is in use.

The bowl 10 has a land portion 18 in the form of an annular rim whichseats on the edge 19 of the cup 11 thereby forming a smoke chamber 20between the underside of the bowl and the inner surface of the cup 11.An annular washer 21 may be positioned between the land portion 18 andthe edge 17.

The stem 13 is also made of metal, preferably stainless steel, extendsfrom the cup at an aperture therein as illustrated and conveys smokefrom the smoke chamber 20 to the mouthpiece 14 which is push-fitted intothe free end of the stem. The inner end of the mouthpiece 14 may beprovided with an extension 22 of reduced diameter so as to form anannular condensate or goo trap 23.

The male screw-threaded member 12 is provided with means defining asmoke passage for passing smoke from the bowl to the cup said meansconsisting, in the embodiment shown in FIG. 1, of an upright orlongitudinally extending bore 24 through the upper portion of the member12 and a straight, open-ended slot 25 which transversely traverses themember 12 intermediate its ends and communicates with the bore 24. Oneadvantage of this arrangement is that the smoke passages thus formed iseasily cleaned, accumulated residues being readily removed from the slot25 into which any residue in the bore 24 may also be readily displaced.

In the embodiment shown in FIG. 3, parts similar to those shown in FIG.1 are indicated with the same reference numerals. In this embodiment, amale screw-threaded member 12A is provided with a smoke passage in theform of a slot 26 which longitudinally traverses the member 12A andextends across the threads thereon so as to place the bowl 10 incommunication with the cup 11. The arrangement has the same advantage asthe FIG. 1 embodiment, the slot 26 being readily freed of cloggingresidues. In the FIG. 3 embodiment, there may be a plurality of slots26.

A further modification is illustrated in FIG. 4 wherein a smoke passage27, 28 through a male screw-threaded member 12A is defined by a conicalor countersunk depression 27 in the upper end of the member 12B and astraight, open-ended passage 28 which extends obliquely through themember 12B from the bottom of the depression 27 and emerges intermediatethe ends of the member 12B and through the side thereof at a positionwhich is located within the smoke chamber 20 when the pipe is assembled.The member 12B is similar, in outline to members 12 and 12A, and has theflanges 16 and '17 as previously described. The smoke, passage asdefined by the depression 27 and passage 28 is, like the previouslydescribed embodiments, easily cleaned by virtue of the passage 28 beingaccessible from both ends thereof as illustrated.

As a result of the above described embodiments, there are providedtobacco pipes in which the entire smoke passage from the bowl to themouthpiece may easily be kept clean and in which the bowl-holding cupmay be formed as by pressing from sheet metal without having to bediecast or moulded thus permitting of readily fabricated constructionswith materials whose quality and durability of appearance provide aneflicient and attractive tobacco pipe at a reasonable price.

I claim:

1. A tobacco pipe having a detachable bowl, a metal bowl-holding cup, asmoke-carrying stem extending from and communicating with the interiorof the metal bowlholding cup, a male screw-threaded member within saidcup and fixed to and projecting from the bottom of the cup, means onsaid bowl defining a screw-threaded socket for engagement with said malescrew-threaded member to connect the bowl to the cup, the interiorsurface of the cup and the underside of the bowl defining a smokechamber between the bowl and the cup, and means defining a slottraversing the screw-threads on the male screwthreaded member and forpassing smoke from the bowl to said chamber.

2. A tobacco pipe having a detachable bowl, a metal bowl-holding cup, asmoke-carrying stem extending from and communicating with the interiorof the metal bowlholding cup, means defining an aperture in the bottomof the cup, a male screw-threaded member within and projecting from thebottom of the cup and fixed thereto through said aperture, means on saidbowl defining a screw-threaded socket, a length of helically wound wirescrewed into said socket for engagement with said male screw-threadedmember to connect the bowl to the cup, the inner surface of the cup andthe underside of the bowl defining a smoke chamber between the bowl andthe cup, means on the male screw-threaded member defining a slottraversing the threads therein, said slot defining a smokecarryingpassage through said male member, said passage extending between thebowl and said chamber.

3. A tobacco pipe having a detachable bowl, 2. metal bowl-holding cup, asmoke-carrying stem extending from and communicating with the interiorof the bowl-holding cup, means defining an aperture in the bottom of thecup, a male screw-threaded member within and projecting from and fixedto the bottom of the cup through said aperture, said male screw-threadedmember having a first flange thereon engaging the inner surface of thecup adjacent and around said aperture and a second flange thereonengaging the outer surface of the cup adjacent and around said aperture,means on the bowl defining a screw-threaded aperture for engagement withthe male screw-threaded member to connect the bowl to the cup, the innersurface of the cup and the underside of the bowl defining a smokechamber between the bowl and the cup, and means on the malescrew-threaded member defining a passage extending between the bowl andthe cup for passing smoke from the bowl to the cup, said means on themale screwthreaded member defining a passage extending between the bowland the cup comprising at least in part means defining a straightpassage having open ends whereby the last-mentioned passage-definingmeans is readily cleared of obstruction, said means on the malescrew-threaded member defining a passage extending between the bowl andthe cup comprising in combination means defining a slot whichtransversely traverses the male member and means defining alongitudinally extending bore through said member, said slot means beinglocated intermediate the ends of the member and said bore meansextending between the slot means and the end of the member remote fromthe bottom of the cup.

4. A tobacco pipe having a detachable bowl, a metal bowl-holding cup, asmoke-carrying stern extending from and communicating with the interiorof the bowl-holding cup, means defining an aperture in the bottom of thecup, a male screw-threaded member within and projecting from and fixedto the bottom of the cup through said aperture, said male screw-threadedmember having a first flange thereon engaging the inner surface of thecup adjacent and around said aperture and a second flange thereonengaging the outer surface of the cup adjacent and around said aperture,means on the bowl defining a screw-threaded aperture for engagement withthe male screw-threaded member to connect the bowl to the cup, the innersurface of the cup and the underside of the bowl defining a smokechamber between the bowl and the cup, and means on the malescrew-threaded member defining a passage extending between the bowl andthe cup for passing smoke from the bowl to the cup, said means on themale screw-threaded member defining a passage extending between the bowland the cup comprising at least in part means defining a straightpassage having open ends whereby the last-mentioned passage-definingmeans is readily cleared of 0bstruction, said means on the malescrew-threaded member defining a passage extending between the bowl andthe cup comprising means defining a slot which longitudinally traversesthe male screw-threaded member and extends across the threads thereon.

5. A tobacco pipe having a detachable bowl, a metal bowl-holding cup, asmoke-carrying stem extending from and communicating with the interiorof the bowl-holding cup, means defining an aperture in the bottom of thecup, a male screw-threaded member within and projecting from and fixedto the bottom of the cup through said aperture, said male screw-threadedmember having a first flange thereon engaging the inner surface of thecup adjacent and around said aperture and a second flange thereonengaging the outer surface of the cup adjacent and around said aperture,means on the bowl defining a screw-threaded aperture for engagement withthe male screw-threaded member to connect the bowl to the cup, the innersurface of the cup and the underside of the bowl defining a smokechamber between the bowl and the cup, and means on the malescrew-threaded member defining a passage extending between the bowl andthe cup for passing smoke from the bowl to the cup, said means on themale screw-threaded member defining a passage extending between the bowland the cup comprising at least in part means defining a straightpassage having open ends whereby the last-mentioned passage-definingmeans is readily cleared of obstruction, said means on the malescrew-threaded member defining a passage extending between the bowl andthe cup comprising in combination means defining a conical depression inthe end of the member remote from the bottom of the cup and meansdefining a bore which extends obliquely through the member from thebottom of said depression to a position on the threaded portion of themember, said position being located within said smoke chamber.

6. A tobacco pipe having a detachable bowl, a metal bowl-holding cup, asmoke-carrying stern extending from and communicating with the interiorof the bowl-holding cup, means defining an aperture in the bottom of thecup, a male screw-threaded member within and projecting from and fixedto the bottom of the cup through said aperture, said male screw-threadedmember having a first flange thereon engaging the inner surface of thecup adjacent and around said aperture and a second flange thereonengaging the outer surface of the cup adjacent and around said aperture,means on the bowl defining a screw-threaded aperture for engagement withthe male screw-threaded member to connect the bowl to the cup, the innersurface of the cup and the underside of the bowl defining a smokechamber between the bowl and the cup, and means on the malescrew-threaded member defining a passage extending between the bowl andthe cup for passing smoke from the bowl to the cup, said means defininga screw-threaded aperture in the bowl including a coiled wire insertwhereof adjacent coils define internal and external screw threads forengagement respectively with said male screw-threaded member and saidbowl, one end of the wire of said coiled wire insert having an extensionprojecting across the end of the male screw-threaded member remote fromthe bot tom of the cup and providing an impediment to the escape oftobacco from the bowl.

7. A tobacco pipe as claimed iniclaim 1, said means defing ascrew-threaded socket on the bowl comprising a coiled wire insert ofwhich adjacent coils define internal and external screw threads forengagement respectively with said male screw-threaded member and saidbowl.

References Cited UNITED STATES PATENTS 351,500 10/1886 Degges 131-222 X782,349 2/1905 Marshall 285-390 X 974,051 10/ 1910 Genther 131-225 X1/1911 Loewenstein 131-214 X 6/1912 Erickson 285-390 X 10/1925 Burger eta1 131-222 5/1928 Barker 131-222 X 1/1934 Kretzner 131-214X 9/1945 Swift131-214 X 7/1949 Brown 131-216 X 5/1956 Doumit 131-214 X 1/1960 Wang131-222 X FOREIGN PATENTS 2/ 1925 Great Britain.

5 1941 Great Britain.

4/ 1934 Switzerland.

SAMUEL KOREN, Primary Examiner.

20 I. S. REICH, Assistant Examiner.

